tablehopper.com, for one, appears in my feed with a lot of extraneous, undigested, unrendered HTML. Both in my feed and my blurblog. Not sure if this is you or them, but thought I’d bring it to your attention.
Can you provide the NewsBlur URLs for any affected feeds?
I’m having this issue with my personal website’s feed: http://newsblur.com/site/2352545/dian…